2016/03/03データアイテム TEACH YOURSELF SPEED MATHEMATICS USING VEDIC MATHEMATICS: SPEED MATHS TUTOR SHORT CUT METHODS FOR FAST CALCULATIONS (EASY MATHS) (English Edition) The purpose of this ebook is to provide about simple and easy to follow methods which can be practised for fast calculations. The step by step explanation and examples helps readers to learn effectively. The methods would be useful for the readers to improve mental calculation and helps to save time in calculations and improve performance. The speed calculation methods will be very useful in various competitive examinations to save time.
For Maths Teachers: This book can be useful for the Math Teachers who can teach the methods provided in the book. This can be used as a guide for helping students to improve their mental calculation and in turn save time in calculations and improve academic performance.
Examples (Read this ebook to learn more such methods)
Find 78563 x 99999 =?
Answer consists of two parts. Left Hand Side (LHS) and Right Hand Side (RHS).
LHS | RHS
(78563 – 1) = 78562 | 99999 – 78562 = 21437
Answer 7856221437
To get LHS of the answer, subtract one from the multiplicand, 78563
To get RHS of the answer, subtract each of the digits of 78562 from 9, (9 – 7 = 2, 9 – 8 = 1, 9 – 5 = 4, 9 – 6 = 3 and 9 – 2 = 7)
To get the final answer combine numbers in LHS (78562) and RHS (21437).
The above formula is a special case that works to multiply any number by 9’s.
To find square of 106 =?
Find the difference between nearest base number (100) and given number, excess = 106 – 100 = 6
The answer consist of 2 parts
LHS | RHS
106 + 6 | 6x6
112 | 36
Square of 106 (106^2) = 11236
106 is near to base number 100, which has 2 zeroes.
RHS of the answer must have 2 digits in the answer
LHS of the answer: Add excess (6) to the given number (106)
RHS of the answer: Square of excess 6x6 = 36
Read this ebook to learn more such methods and improve your calculation speed!
